Skip the auto shop - Our mechanics make house calls

Q: Heater not working

asked by on

My air conditioning works really well with no problems or issues and gets cold as it should but when it comes to my heat it does not work it only blows out cool air and never gets warm. So my question is do you know what could cause this issue?

My car has 180000 miles.
My car has an automatic transmission.

A: Hello. There are usually three potential cu...

Hello. There are usually three potential culprits that cause this issue. First is that the heater core inside the dash is broken or clogged. Second, it could be a problem with the vents from the heater core to the vents on the dash. Third, it may be caused by a heater thermostat in the cooling system that directs warm coolant to power the heater core. Your best bet may be to have a local professional, like one from YourMechanic, inspect the heating system in order to have this corrected in time for winter.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: There is a hole directly below the heater core hoses on the firewall of the engine compartment that is dripping coolant

This is the A/C heater evaporator case drain. If you see coolant leaking from it then you have a blown out heater core inside the evaporator case. If you do not get it fixed soon the engine will run out...

Q: Central Locking/Alarm Fail

Although it is rare that the circuit would be designed this way, it is possible that the rear wiper motor is related to the locking circuit. I would recommend trying to reconnect your rear wiper motor to its connector to...

Q: Headlights acting up after changing bulbs.

I would start with checking all the connections at the headlight wiring, and check the grounds to make sure everything is making good contact. Also make sure that the bulbs you put in are correct, and that they are properly...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.